From Aldehyde Monomer Patents (Class 526/315)
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Patent number: 6495273Abstract: A light-emitting polymer and its preparation method, the polymer being excellent in electron injection and transport ability as well as hole injection and transport ability in an EL device, the EL device manufactured from the polymer being also emittable in the blue emission region, in which the EL device from an inorganic material is not mostly emittable. The light-emitting polymer of the invention is an alternated copolymer having repeated units (arylenevinylene units) excellent in hole injection and transport ability and repeated units (fluorinated tetraphenyl units) excellent in electron injection and transport ability with alternated order, as shown in formula (II). An EL device manufactured from the light-emitting polymer, a fluorinated tetraphenyl derivative of formula (I), which is used as a monomer to prepare the light-emitting polymer, and their preparation methods.Type: GrantFiled: September 15, 1999Date of Patent: December 17, 2002Assignee: Electronics and Telecommunications Research InstituteInventors: Do Hoon Hwang, Tae Hyoung Zyung, Lee Mi Do, Hye Yong Chu
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Patent number: 6410666Abstract: The invention discloses a method for preparing a tri block copolymer of the formula: comprising: (a) contacting a cycloalkene with a chain transfer agent of the formula: Z—Y═Y—Z in the presence of a metal carbene metathesis catalyst to form a telechelic polymer; and (d) contacting the telechelic polymer with an alkene of the formula in the presence of an ATRP organometallic catalyst wherein n and m are integers; Z is an ATRP initiator and —Y═Y— is an alkenyl group; and, R′ is selected from the group consisting of aryl, nitrile and C1-C20 carboxylate, wherein R′ is substituted or unsubstituted. The invention also discloses a method for preparing a diblock copolymer. In addition, the invention encompasses a triblock copolymer having no 1,2-PBD structure in the PBD portion of the copolymer.Type: GrantFiled: March 17, 2000Date of Patent: June 25, 2002Assignee: California Institute of TechnologyInventors: Robert H. Grubbs, Christopher W. Bielawski
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Patent number: 6407191Abstract: The present invention relates to an ethylene homo or copolymer having a density of between 0.923 and 0.935 g/cm3, having a molecular weight distribution Mw/Mn of between 3 and 10, and comprising from 0.10 to 0.50 wt. percent of units derived from a carbonyl group containing compound, based on the total weight of the homo or copolymer. In addition, the invention relates to a free radical initiation polymerization process for the preparation of medium density ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 1600 and 4000 kg/cm2, and at temperatures of about 150-330° C. in a reactor system consisting of at least one autoclave reactor or of a combination of autoclave and tubular reactors, in the presence of free radical initiators and a carbonyl group containing compound.Type: GrantFiled: November 20, 2000Date of Patent: June 18, 2002Assignee: The Dow Chemical CompanyInventors: Juan Manuel Mezquita, Karl Zuercher, Ronald Wevers
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Patent number: 6368768Abstract: Polymers are provided having the following formula I, II or III: Polymers of the present invention can be used to provide an anti-reflective coating (ARC) material useful for submicrolithography processes using 248 nm KrF, 193 nm ArF and 157 nm F2 lasers. The polymers contain chromophore substituents which exhibit sufficient absorbance at wavelengths useful for such submicrolithography process. The ARC prevents back reflection from the surface of or lower layers in the semiconductor devices and solves the problem of the CD being altered by the diffracted and reflected light from such lower layers. The ARC also eliminates the standing waves and reflective notching due to the optical properties of lower layers on the wafer, and due to the changes in the thickness of the photosensitive film applied thereon. This results in the formation of stable ultrafine patterns suitable for 64M, 256M, 1 G, 4 G and 16 G DRAM semiconductor devices and a great improvement in the production yield.Type: GrantFiled: February 9, 2000Date of Patent: April 9, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Min-Ho Jung, Sung-Eun Hong, Ki-Ho Baik
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Patent number: 6350838Abstract: A curable composition for encapsulating an electronic component comprises one or more mono- or polyfunctional maleimide compounds, or one or more mono- or polyfunctional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, with a free radical curing agent, and optionally, one or more fillers.Type: GrantFiled: June 28, 2001Date of Patent: February 26, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: Bodan Ma, Quinn K. Tong
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Publication number: 20020015946Abstract: The present invention relates to a method of treating a viral infection in an animal, such as a human, by administering to the animal a therapeutically effective amount of a polymer comprising a plurality of pendant hydrophobic groups and a plurality of pendant acid functional groups. The acid functional groups are connected directly to the polymer backbone or via an aliphatic spacer group of 1 to about 20 atoms in length.Type: ApplicationFiled: June 11, 2001Publication date: February 7, 2002Applicant: GelTex Pharmaceuticals, Inc.Inventors: Thomas X. Neenan, W. Harry Mandeville,
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Publication number: 20020010295Abstract: Disclosed herein is a moisture-absorbing and desorbing polymer, characterized in that, the said polymer is an organic high-molecular substance containing 1.0-8.0 meq/g of carboxyl group of a potassium type and having a cross-linking structure.Type: ApplicationFiled: April 12, 2000Publication date: January 24, 2002Inventor: Ryosuke Nishida
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Patent number: 6291616Abstract: Methods of preparing a telechelic polymer (mono- or bi-telechelic) that use a ruthenium or osmium carbene catalyst and a capping agent, at least one of which is functionalized.Type: GrantFiled: June 17, 1999Date of Patent: September 18, 2001Assignee: Wisconsin Alumni Research FoundationInventors: Laura L. Kiessling, Eva J. Gordon, Laura E. Strong
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Publication number: 20010012572Abstract: Disclosed are a novel polymer comprising at least one partial structure represented by the following formula (I), (II) or (III), a light-emitting device material which is the polymer, and a light-emitting device using the material: 1Type: ApplicationFiled: December 11, 2000Publication date: August 9, 2001Inventor: Katsumi Araki
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Patent number: 6268126Abstract: The present invention relates to a method of treating a viral infection in an animal, such as a human, by administering to the animal a therapeutically effective amount of a polymer comprising a plurality of pendant hydrophobic groups and a plurality of pendant acid functional groups. The acid functional groups are connected directly to the polymer backbone or via an aliphatic spacer group of 1 to about 20 atoms in length.Type: GrantFiled: January 25, 2000Date of Patent: July 31, 2001Assignee: GelTex Pharmaceuticals, Inc.Inventors: Thomas X. Neenan, W. Harry Mandeville, III
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Patent number: 6239207Abstract: A latex is prepared by polymerizing a polymerizable monomer having an active methylene group in the presence of a hydrophilic polymer. The hydrophilic polymer comprises an isoprene sulfonic acid or salts thereof as a monomer unit. A sheet material is prepared having a support with a hydrophilic layer containing the latex thereon.Type: GrantFiled: November 10, 1998Date of Patent: May 29, 2001Assignee: Konica CorporationInventors: Chiaki Nagaike, Eiichi Ueda, Nobuo Kubo
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Patent number: 6232412Abstract: The invention relates to build-up agents which comprise a condensation product among an aldehyde, a phenol compound and an aromatic carboxylic acid, hydroxy-substituted on the aromatic nucleus. The products are particularly effective in reducing or suppressing the build-up formation in the polymerization of vinyl chloride or vinyl acetate, other copolymerizable substances being optionally present. Further objects of the invention are compositions containing the above agents, their use as build-up agents, methods for their preparation and the products obtained therefrom, the polymerization processes carried out in reactors whose inner walls are coated with these agents and polymers obtained from these process.Type: GrantFiled: June 3, 1999Date of Patent: May 15, 2001Assignee: 3V Inc.Inventors: Giuseppe Raspanti, Matteo Zanotti Russo
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Patent number: 6132985Abstract: The present invention describes methods for the detoxification of a mixture of nitrile compounds, or a mixture of nitrile and amide compounds by conversion of the nitrile compound(s) to the corresponding amide or acid compounds using a pure culture of an induced microorganism strain capable of converting a nitrile moiety to an amide or acid moiety. If an amide is formed or is present in the mixture, the amide can be further converted, using the present methods for detoxification, to the corresponding acid. The acid can then, if desired, be further degraded to CO.sub.2, H.sub.2 O and biomass. The induced pure cultures are able to detoxify a mixture of nitriles or a mixture of nitrites and amides which are typically present, in high concentration(s), in nitrile production waste streams.Type: GrantFiled: June 18, 1999Date of Patent: October 17, 2000Assignee: Cytec Technology CorporationInventor: George E. Pierce
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Patent number: 6114476Abstract: Disclosed is a method of inhibiting the formation of scale on reactor surfaces in contact with a polymerizing vinyl monomer comprising contacting said monomer with a terpolymer which comprises the condensation reaction product of(A) an aromatic compound that contains the group ##STR1## where Q is OR or SR and R is hydrogen, alkyl from C.sub.1 to C.sub.15, or aryl, alkaryl, or aralkyl from C.sub.6 to C.sub.15 :(B) about 0.1 to about 10 moles of a carbonyl compound per mole of said aromatic compound; and(C) about 0.1 to about 10 moles of a thiourea per mole of said aromatic compound.Type: GrantFiled: August 10, 1998Date of Patent: September 5, 2000Assignee: Occidental Chemical CorporationInventors: Ramesh Krishnamurti, Sandor Nagy, Qi Wang, Habib Hichri
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Patent number: 6060571Abstract: Acrolein polymer from acrolein and one or more polyhydric alcohols, characterized by release of monomeric acrolein in aqueous systems and hence by a prolonged effect on microorganisms, is prepared by adding acrolein to a reaction medium containing catalyst in dissolved form, and not allowing the temperature of the reaction medium to rise about 50.degree. C. The acrolein polymer may be used in aqueous systems as a biocide.Type: GrantFiled: February 21, 1997Date of Patent: May 9, 2000Assignee: Degussa AktiengesellschaftInventors: Peter Werle, Hans-Peter Krimmer, Martin Trageser, Franz-Rudolf Kunz
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Patent number: 6060235Abstract: The present invention relates to a method of treating a viral infection in an animal, such as a human, by administering to the animal a therapeutically effective amount of a polymer comprising a plurality of pendant hydrophobic groups and a plurality of pendant acid functional groups. The acid functional groups are connected directly to the polymer backbone or via an aliphatic spacer group of 1 to about 20 atoms in length.Type: GrantFiled: September 19, 1997Date of Patent: May 9, 2000Assignee: GelTex Pharmaceuticals, Inc.Inventors: Thomas X. Neenan, W. Harry Mandeville, III
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Patent number: 6051670Abstract: A gelling composition and a process for using the gelling composition for oilfield applications are provided. The gelling composition comprises a water-soluble polymer, a crosslinking agent, and a liquid wherein the water-soluble polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The gelling composition can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.Type: GrantFiled: December 20, 1995Date of Patent: April 18, 2000Assignee: Phillips Petroleum CompanyInventors: Iqbal Ahmed, Ahmad Moradi-Araghi, Aly-Anis Hamouda, Odd Ivar Eriksen
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Patent number: 5917094Abstract: Acrolein-releasing emulsion homopolymers release acrolein in aqueous systems. They are produced by adding acrolein, at least 95% by weight pure, to a solution of an alkali hydroxide, with the temperature not exceeding 25.degree. C. during the addition, and then adjusting the pH to 5 to 7 by adding a mineral acid.Type: GrantFiled: December 16, 1997Date of Patent: June 29, 1999Assignee: Degussa-Huls AktiengesellschaftInventors: Peter Werle, Hans Peter Krimmer, Martin Trageser
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Patent number: 5914357Abstract: As a vehicle resin used for self-polishing antifouling paints, a vinyl polymer having a plurality of primary amino groups in the form of Schiff base in the molecule is used. The films of an antifouling paint containing this vehicle resin gradually release an aldehyde exhibiting antifouling activity from the Schiff base group upon hydrolysis with sea water, while the film gradually dissolves from the surface.Type: GrantFiled: March 9, 1998Date of Patent: June 22, 1999Assignee: Nippon Paint Co., Ltd.Inventors: Isao Nakamura, Naoki Yamamori
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Patent number: 5883210Abstract: A gelling composition and a process for using the gellimg composition for oilfield applications are provided. The gelling composition comprises a water-soluble polymer, a crosslinking agent, and a liquid wherein the water-soluble polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The gelling composition can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.Type: GrantFiled: September 19, 1997Date of Patent: March 16, 1999Assignee: Phillips Petroleum CompanyInventors: Iqbal Ahmed, Ahmad Moradi-Araghi, Aly-Anis Hamouda, Odd Ivar Eriksen
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Patent number: 5863750Abstract: The present invention describes methods for the detoxification of a mixture of nitrile compounds, or a mixture of nitrile and amide compounds by conversion of the nitrile compound(s) to the corresponding amide or acid compounds using a pure culture of an induced microorganism strain capable of converting a nitrile moiety to an amide or acid moiety. If an amide is formed or is present in the mixture, the amide can be further converted, using the present methods for detoxification, to the corresponding acid. The acid can then, if desired, be further degraded to CO.sub.2, H.sub.2 O and biomass. The induced pure cultures are able to detoxify a mixture of nitrites or a mixture of nitriles and amides which are typically present, in high concentration(s), in nitrile production waste streams.Type: GrantFiled: December 18, 1996Date of Patent: January 26, 1999Inventor: George E. Pierce
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Patent number: 5705559Abstract: Disclosed is a process for preparing crosslinked resin particles which comprises dispersing a resin having both a water-dispersible function and a self-crosslinkable function in one molecule in an aqueous medium and then three-dimensionally crosslinking.Type: GrantFiled: February 21, 1995Date of Patent: January 6, 1998Assignee: Nippon Paint Co., Ltd.Inventors: Hiroyuki Sakamoto, Kenshiro Tobinaga, Yasuyuki Tsuchiya, Hisaichi Muramoto, Yusuke Ninomiya, Keizou Ishii, Shinichi Ishikura
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Patent number: 5683773Abstract: Chlorine-containing polyethylene- and polyether-based elastomer compositions having excellent heat resistance and chemical resistance, which are heat stabilized with from about 1 to about 25 parts per hundred weight of the elastomer of barium sulfate, and high temperature and chemical resistant molded and extruded products including automotive hose and cable jacketing incorporating such elastomer compositions.Type: GrantFiled: February 28, 1997Date of Patent: November 4, 1997Assignee: The Gates CorporationInventor: Dennis Kemper
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Patent number: 5559202Abstract: The present invention provides new non-spherical microparticles. The microparticles are a hemisphere or a half elliptic sphere having a big opening at the central portion, say bowl-shape microparticles, and a water uptake of from 80 to 140 ml/100 g, which can be produced by suspension polymerization of polymerizable monomers in the presence of crosslinking agents and hydrophobic liquids in water. The microparticle of the present invention has an excellent extending ability, adhesiveness and water uptake. The new bowl-shape microparticles having the big opening at the center can be easily produced according to the present invention, and the size and shape can be easily controlled.Type: GrantFiled: June 6, 1995Date of Patent: September 24, 1996Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.Inventor: Hirofumi Yoshikawa
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Patent number: 5399642Abstract: This invention relates to latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers. In addition, this invention relates to novel polymers and block copolymers formed using these latent thiol mercaptan chain transfer agents.Type: GrantFiled: December 13, 1993Date of Patent: March 21, 1995Assignee: Rohm & Haas CompanyInventors: William D. Emmons, Andrew W. Gross
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Patent number: 5384401Abstract: A radioactive diagnostic agent which comprises (1) the unit of a polyformyl compound having at least three formyl groups per molecule, (2) at least two units of an amino group-containing chelating compound bonded to the polyformyl compound with intervention of a methyleneimine linkage (--CH.dbd.N--) or a methyleneamine linkage (--CH.sub.2 NH--) formed by the condensation between the formyl group in the polyformyl compound and the amino group in the chelating compound, optionally followed by reduction, (3) at least one unit of an amino group-containing physiologically active substance bonded to the polyformyl compound with intervention of a methyleneimine linkage or a methyleneamine linkage formed by the condensation between the formyl group in the polyformyl compound and the amino group in the physiologically active substance, optionally followed by reduction, and (4) at least two radioactive metallic elements of which each is bonded to the chelating compound through a chelating bond.Type: GrantFiled: March 22, 1994Date of Patent: January 24, 1995Assignee: Nihon Medi-Physics Co., Ltd.Inventors: Keietsu Takahashi, Nobuo Ueda, Masaaki Hazue
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Patent number: 5384378Abstract: Copolymers with non-linear optical properties, which contain or are composed of repeating units of the formula (I) ##STR1## where D is an electron donor,A is an electron acceptor,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be the same as or different from one another, and are each H, alkyl, cycloalkyl, or R.sup.3 and R.sup.4 are each CN, NO.sub.2 or CHO, or R.sup.1 forms with R.sup.2, or R.sub.3 forms with R.sup.4, a fused-on ring,X is CH and/or N,m is an integer from 2 to 11, andR is hydrogen or methyl,and repeating units of at least one of the formulae (II), (III) and (IV) ##STR2## are suitable for the production of optical components.Type: GrantFiled: September 21, 1993Date of Patent: January 24, 1995Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Stefan Beckmann, Oskar Nuyken, Peter Strohriegl, Harry Mueller
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Patent number: 5360880Abstract: Polymerisable materials produced by the reaction of a pyrrole and an unsaturated or polymerisable aldehyde, preferably a beta-unsaturated aldehyde.Polymers made from the above-described polymerisable material and copolymers formed from the said material and at least one other polymerisable monomer of a known type.Such polymers and copolymers may be used for the production of films, coatings and other structures.Type: GrantFiled: March 5, 1993Date of Patent: November 1, 1994Assignees: The Australian National University, The Acton and Memtec Ltd.Inventors: Richard M. Pashley, Timothy J. Senden, Richard A. Morris, James T. Guthrie, Wei D. He
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Patent number: 5294728Abstract: This invention relates to latent thiol mercaptan chain transfer agents and their use in the synthesis of polymers. In addition, this invention relates to novel polymers and block copolymers formed using these latent thiol mercaptan chain transfer agents.Type: GrantFiled: November 4, 1991Date of Patent: March 15, 1994Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Andrew W. Gross
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Patent number: 5290894Abstract: Polymeric compounds having a polyacrolein sub unit in aldehyde, hydrated, hemi acetal or acetal form are provided which have biocidal or biostatic properties. The polymeric compound may be used to treat, or be included in, a wide range of products.Type: GrantFiled: July 31, 1989Date of Patent: March 1, 1994Assignee: Biopolymers LimitedInventors: Graham J. H. Melrose, Concetta M. Kleppe, Jeffrey W. Langley, Jeffrey M. Stewart, Jacobus Van Dyk
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Patent number: 5280093Abstract: The present invention relates to chiral polymers and to their uses for operations of asymmetric synthesis, deracemization and optical inversion.These polymers are characterized in that they comprise:a chiral unita functionalizing unitan optional crosslinking unitApplication to chiral organic synthesis.Type: GrantFiled: April 14, 1993Date of Patent: January 18, 1994Assignee: Rhone-Poulenc ChimieInventors: Robert Jacquier, Monique Calmes, Jacques Daunis
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Patent number: 5272218Abstract: Disclosed are polymers which contain NLO dye moieties based upon a barbituric acid group, a thiobarbituric acid group or a 1,3-bis(dicyanomethylene)indan-2-ylidene group. These polymers, after poling, are useful in NLO elements in devices employing nonlinear optics. Also disclosed are various intermediates used in making such polymers.Type: GrantFiled: August 21, 1992Date of Patent: December 21, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Lap-Tak A. Cheng, Wilson Tam
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Patent number: 5268417Abstract: Aqueous dispersions of a copolymer obtained by free-radical polymerization and containing from 0.01 to 40% w/w of polymerized units of comonomers having at least one aldehyde or keto group, which dispersions contain at least one polyisocyanate in which the isocyanate groups are blocked by oximes.Type: GrantFiled: June 26, 1992Date of Patent: December 7, 1993Assignee: BASF AktiengesellschaftInventors: Ulrich Filges, Karl Haeberle, Lothar Maempel, Oral Aydin, Gerhard Bauer
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Patent number: 5258477Abstract: Various novel acetal- and aldehyde-containing monomers are prepared. They can be polymerized and copolymerized by conventional polymerization techniques. The polymers contain repeating units derived from one or more ethylenically or allylically unsaturated monomers containing an acetal group or aldehyde group and optionally one or more repeating units derived from ethylenically or allylically unsaturated monomers other than the acetal-containing or aldehyde-containing monomer such as ethylene, vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, methyl methacrylate or acrylic acid. Aqueous emulsions of polymers containing the acetal-containing monomers and a hydroxy-containing monomer are useful as binders for nonwoven fabrics.Type: GrantFiled: October 16, 1990Date of Patent: November 2, 1993Assignee: National Starch and Chemical Investment Holding CorporationInventors: John J. Tsai, Patrick G. Jobe, Robert L. Billmers, Rama S. Chandran, Paul R. Mudge, Michael T. Sarkis
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Patent number: 5241002Abstract: The methacrylic ester polymers produced according to this invention are uniquely distinguished from the radically prepared polymers of similar composition by the fact that both polymers produced: by anionic living polymerization and by deactivating the active terminals of anionic living polymers; contain acetal and/or ketal groups as the blocked hydroxyl groups and have narrow molecular weight distribution. Hydroxyl group-containing methacrylic acid ester polymers are produced by hydrolysis of the above-mentioned polymers. The anionic living polymers are produced in high yields by anionically polymerizing methacrylic acid esters containing an acetal or ketal group in the presence of initiators such as alkaline metal alkoxides. The polymers of the present invention can be used in various fields of applications such as coatings and adhesives. The polymers of the present invention yield curable high solids compositions.Type: GrantFiled: March 4, 1992Date of Patent: August 31, 1993Assignee: Dainippon Ink And Chemicals, Ltd.Inventors: Yuji Ohashi, Masataka Ooka
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Patent number: 5138002Abstract: Temporary wet strength resins, and paper products containing same, having a molecular weight of from about 20,000 to about 200,000, most preferably from about 30,000 to about 95,000, having the formula: ##STR1## wherein: A is ##STR2## and X is --O--, --NH--, or --NCH.sub.3 --, and R is a substituted or unsubstituted aliphatic group; Y.sub.1 and Y.sub.2 are independently --H, --CH.sub.3, or a halogen; W is a nonnucleophilic, water-soluble nitrogen heterocyclic moiety; and Q is a cationic monomeric unit. The mole percent of "a" ranges from about 30% to about 70%, preferably from about 45% to about 55%; the mole percent of "b" ranges from about 30% to about 70%, preferably from about 45% to about 55%; and the mole percent of "c" ranges from about 1% to about 40%, most perferably from about 2% to about 8%.Type: GrantFiled: October 12, 1990Date of Patent: August 11, 1992Assignee: The Procter & Gamble CompanyInventor: David W. Bjorkquist
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Patent number: 5124417Abstract: Disclosed are novel compounds which are useful as initiators for cationically polymerizable monomers. The novel compounds comprise a carbon containing cation (e.g., trimethyloxonium) which is capable of initiating cationic polymerization and a non-nucleophilic counterion which is an at least partially fluorinated hydrocarbylsulfonato metallate (e.g. perfluoroethylsulfonato-aluminate). The disclosed initiators are capable of initiating the cationic polymerization of a wide variety of monomers such as epoxides, tetrahydrofuans, oxazolines, vinyls, lactones, and the like.Type: GrantFiled: September 3, 1991Date of Patent: June 23, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventor: Omar Farooq
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Patent number: 5053452Abstract: There are disclosed normally tacky, pressure-sensitive adhesive compositions comprising one or more normally tacky polymers having a T.sub.g of about 0.degree. C. or less and containing pendant functional groups attached to the backbone and having the formula: ##STR1## in which R.sub.1 is a divalent organic radical at least 3 atoms in length, and X is organoacyl or cyano, the polymers preferably also being normally tacky when cured. Such polymers have markedly improved cohesive strength (shear holding value) with little or no detriment to adhesive tack or adhesion (peel resistance), and these improvements are realized without the necessity of incorporating cross-linking monomers such as N-methylolamides or other cross-linking agents. Pressure-sensitive adhesive, water-based emulsions containing such polymers and pressure-sensitive adhesive articles comprising a substrate having at least a portion of one surface thereof coated with the adhesive compositions are also disclosed.Type: GrantFiled: November 8, 1989Date of Patent: October 1, 1991Assignee: Union Oil Company of CaliforniaInventors: Lon T. Spada, Joseph J. Wilczynski
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Patent number: 4959428Abstract: A process for emulsion-polymerizing unsaturated monomer(s) is disclosed. When a hydrazine derivative having at least two hydrazine residues per molecule is added to the polymer dispersion obtained by said emulsion polymerization process, a polymer dispersion composition capable of forming a film which is excellent in blocking resistance, adhesiveness to an alkyd resin film, water-resistant adhesiveness to an alkyd resin film and water-resistant anti-whitening can be obtained.Type: GrantFiled: August 17, 1988Date of Patent: September 25, 1990Assignee: Mitsubishi Yuka Badische Company, Ltd.Inventors: Tadashi Abe, Masahiro Aoki, Takeo Tsukamoto
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Patent number: 4795632Abstract: Preparations for washing or rinsing hair contain polyaldehydocarboxylic acids having an average molecular weight of from 600 to 10,000, a carboxyl group content of from 5 to 9 and preferably from 7 to 9 and an aldehyde group content of from 1 to 5 and preferably from 1 to 3 per 10 monomer units, or water-soluble salts thereof. These additives reduce the smoothness of dry hair and improve body and stylability after washing. The polyaldehydocarboxylic acids are preferably used in conjunction with hair-conditioning linear alkyl and/or alkylether phosphate salts, alkyl, hydroxyalkyl and/or aminoalkyl phosphonate salts. Preferred embodiments are hair shampoos containing from about 1 to about 10% by weight of the polyaldehydocarboxylic acids and from about 5 to about 50% by weight of anionic surfactants of the alkyl sulfate and/or alkylether sulfate type and hair rinses containing from about 1 to about 10% by weight of hair-conditioning alkyl and/or alkylether phosphate salts and/or alkane phosphonate salts.Type: GrantFiled: June 16, 1986Date of Patent: January 3, 1989Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Karl Giede, Horst Hoeffkes
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Patent number: 4783336Abstract: Suspension polymerization of acrolein type compounds in the presence of appropriate surfactants results in the formation of microspheres in size ranging from 0.03 to 80 microns. Fluorescent and magnetic microspheres are obtained by carrying out the same polymerization in the presence of appropriate fluorochromic or ferrofluidic compounds, respectively. Hybrido-polyacrolein microspheres are obtained by grafting one type of such microspheres on another type. Immunomicrospheres were formed by binding covalently at physiological pH appropriate proteins to the microspheres. The immunomicrospheres can be used for various biological applications, such as specific markers for labeling cell surface receptors, for cell separation, for diagnostic purposes, etc.Type: GrantFiled: September 4, 1985Date of Patent: November 8, 1988Assignee: Yeda Research and Development Company, Ltd.Inventors: Shlomo Margel, Uzi Beitler
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Patent number: 4771112Abstract: Oligomeric and prepolymeric organic compounds with aldehyde, epoxide, isocyanate, or halotriazine groups and polymerizable groups. Compounds of this type and mixtures thereof have outstanding adhesion properties, especially in relation to biological substrates, can be copolymerized with composites based on unsaturated monomers, and are especially appropriate in dentistry and medicine as adhesion promoters, adhesive fillers, or adhesive cement.Type: GrantFiled: October 7, 1987Date of Patent: September 13, 1988Assignee: Ernst Muhlbauer KGInventor: Jurgen Engelbrecht
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Patent number: 4690906Abstract: The present invention relates to polyfunctional hydrophilic spherical microparticles of uniform size which contain from 5 to 95% of units originating from the copolymerization of an aldehyde of the formula ##STR1## R.sub.1 being an alkyl radical, from 5 to 90% of units originating from the copolymerization of an acrylic acid ester of the formula ##STR2## in which R.sub.2 is H or alkyl and R.sub.3 is a hydroxyalkyl group, less than 15% of units originating from an acrylic acid derivative chosen from amongst ##STR3## R.sub.4, R.sub.5 and R.sub.6 being alkyl radicals, and from 0.1 to 10% of units originating from a crosslinking product.The invention also relates to a process for the preparation of the said microparticles and to the use of these microparticles for the nephelometric determination of HB.sub.s antigen.Type: GrantFiled: January 30, 1985Date of Patent: September 1, 1987Assignee: SanofiInventors: Jean Duheille, Bernard Pau, Pierre Gros
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Patent number: 4677138Abstract: Homopolymeric polyaldehyde microspheres can be prepared in yields of up to about 90% by preparing an aqueous solution consisting essentially of a suitable concentration of an .alpha.,.beta.-ethylenically unsaturated aldehyde and a suitable concentration of an appropriate surfactant under suitable conditions such that the surfactant has a net electrostatic charge. The solution, which may also contain a ferrofluidic material, fluorescent dye or additional solvent, is then irradiated under an inert atmosphere with a sufficient dose of .gamma.-radiation to effect polymerization and the monodisperse homopolymeric polyaldehyde microspheres so produced are recovered. Copolymeric polyaldehyde microspheres can be prepared by adding to the solution a suitable concentration of a copolymerizable comonomer before initiating polymerization.Type: GrantFiled: October 19, 1984Date of Patent: June 30, 1987Assignee: Yeda Research and Development Co., Ltd.Inventor: Shlomo Margel
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Patent number: 4666697Abstract: A radioactive diagnostic agent which comprises (1) a unit of a polyformyl compound having at least three formyl groups per molecule, (2) at least two units of an amino group-containing chelating compound bonded to the polyformyl compound a methyleneimine linkage (--CH.dbd.N--) or a methyleneamine linkage (--.sub.2 NH--) formed by the condensation between the formyl group in the polyformyl compound and the amino group in the chelating compound, optionally followed by reduction, (3) at least one unit of an amino group-containing physiologically active substance bonded to the polyformyl compound by a methyleneimine linkage or a methyleneamine linkage formed by the condensation between the formyl group in the polyformyl compound and the amino group in the physiologically active substance, optionally followed by reduction, and (4) at least two radioactive metallic elements of which each is bonded to the chelating compound through a chelating bond.Type: GrantFiled: December 5, 1983Date of Patent: May 19, 1987Assignee: Nihon Medi-Physics Co., Ltd.Inventors: Keietsu Takahashi, Nobuo Ueda, Masaaki Hazue
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Patent number: 4647688Abstract: Fatty ethers are provided which are lower alkyl ethers cyano-substituted lower alkyl ethers, ester ethers or amide ethers of fatty alcohols substituted with at least one of the following substituents: formyl, methylol, or acryloxymethyl. The substituted fatty ethers are useful as monomers in a wide variety of polymer systems.Type: GrantFiled: February 28, 1985Date of Patent: March 3, 1987Assignee: Henkel CorporationInventors: Michael J. Virnig, James P. Clark, Kenneth D. MacKay
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Patent number: 4622362Abstract: Microspheres of acrolein homopolymers and copolymer with hydrophillic comonomers such as methacrylic acid and/or hydroxyethylmethacrylate are prepared by cobalt gamma irradiation of dilute aqueous solutions of the monomers in presence of suspending agents, especially alkyl sulfates such as sodium dodecyl sulfate. Amine or hydroxyl modification is achieved by forming adducts with diamines or alkanol amines. Carboxyl modification is effected by oxidation with peroxides. Pharmaceuticals or other aldehyde reactive materials can be coupled to the microspheres. The microspheres directly form antibody adducts without agglomeration.Type: GrantFiled: August 4, 1983Date of Patent: November 11, 1986Assignee: California Institute of TechnologyInventor: Alan Rembaum
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Patent number: 4554199Abstract: A thermoplastic synthetic high polymer sheet including induced tensile stress lengthwise of the sheet which varies in intensity from a maximum along one edge to a minimum along the other edge. The induced tensile stress is frozen in the sheet by maintaining its temperature below a transformation temperature. Upon elevation of the temperature of the sheet above the transformation temperature, as the process of fabrication of a laminated windshield is to commence, the sheet, without further operative forming operations, will deform to conform substantially to the outline of the outer curved lamina of the windshield. The sheet may include a zone along one edge to provide filtering of glare.Type: GrantFiled: March 5, 1982Date of Patent: November 19, 1985Assignee: Saint-Gobain VitrageInventors: Paul Roentgen, Helmut Krumm, Gunter Lenzen, Heinz Schilde
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Patent number: 4552812Abstract: Suspension polymerization of acrolein type compounds in the presence of appropriate surfactants results in the formation of microspheres in size ranging from 0.03.mu. to 80.mu.. Fluorescent and magnetic microspheres are obtained by carrying out the same polymerization in the presence of appropriate fluorochromic or ferrofluidic compounds, respectively. Hybrido polyacrolein microspheres are obtained by grafting one type of such microspheres on another type. Immunomicrospheres were formed by binding covalently at physiological pH appropriate proteins to the microspheres. The immunomicrospheres can be used for various biological applications, such as specific markers for labelling cell surface receptors, for cell separation, for diagnostic purposes, etc.Type: GrantFiled: December 14, 1981Date of Patent: November 12, 1985Assignee: Yeda Research and Development CompanyInventors: Shlomo Margel, Uzi Beitler
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Patent number: 4446068Abstract: N-substituted fluoroaziridines useful as chemical intermediates and process or making by reaction of fluoroazines with fluorocarbenes.Type: GrantFiled: April 4, 1967Date of Patent: May 1, 1984Assignee: The United States of America as represented by the Secretary of the NavyInventor: Ronald A. Mitsch